How did Seselj's lapdog become the absolute ruler of Serbia?

FOUR months ago, one of the main topics in Serbia was a documentary called "Vladalac" (The Ruler) written by Slavisa Lekic, directed by Jovana S. Polic, and edited by Sanja Loncar, which was aired by N1. The two-part documentary lasts three hours and features the current president of Serbia and the Serbian Progressive Party (SNS), Aleksandar Vucic.